Minecraft Java 1.21 Mods
Browse 227 free mods for Minecraft Java 1.21 — popular picks include BSLib, 1.21 GameRules Restore, AtomicsLib.
Updated daily
BSLib
BSLib Library aims to eliminate boilerplate code, streamline development workflows, and introduce modern reactive programming paradigms to the Minecraft ecosystem.
1.21 GameRules Restore
1.21 GameRules Restore brings back the original behavior of selected gamerules from version 1.21 that were changed in Minecraft 1.21.11. This allows servers to keep the old mechanics without downgrading the game version.
AtomicsLib
This is a library datapack which adds all the annoying things you end up making everytime.
DiscordSynkLeaderBoard
DiscordSyncLeaderboard is an advanced Minecraft plugin that provides a complete leaderboard system with global stats, Discord synchronization, animated holograms, and web dashboard control.
MysticLib
Core shared library for all Mystic Minecraft plugins — provides database pooling, logging, plugin registry, and utilities.
PaperZ
Plug-in for notes!
twinkle popo mod
it adds twinkle popo realistic pikachu and realistic hellokity
FurnaceEditor
A collection of powerful in-game editors to manage crafting and smelting recipes effortlessly. Create, edit, and delete recipes via intuitive UIs without ever touching a config file.
Helios Core
HeliosCore is the foundation plugin powering the entire Helios ecosystem, providing shared services for storage, permissions, messaging, licensing, player profiles, and the live web dashboard used across all Helios plugins.
MysticPlaceholders
A standalone Minecraft plugin for creating custom placeholders with PlaceholderAPI integration, Skript support, and MySQL/MariaDB storage.
OpenRouter Chatbot
OpenRouter Chatbot is a powerful and highly configurable Spigot plugin that integrates the OpenRouter AI API into your Minecraft server.
Kit Manager
A Datapack that lets you save your inventory into a kit to then load it later down the line!
StorageManager API
An API for manage storage systems in Minecraft backends
CobbleFight
A dedicated ELO Battle system for Cobblemon
LuaCraft
LuaCraft embeds LuaJ into Paper/Bukkit servers, providing developers with a lightweight, fast scripting layer without the complexity of full plugin development.
iammojogo's Uncrafting Mod
This mod is a mod that allows users to uncraft crafted items to gain back resources from items they don't need and don't want to throw away or burn.
The Complete Qur'an
The Complete Quran as Written Books! 114 chapters, 6,236 verses in 133 beautifully formatted written books. Single command installation.
ServerBenchmarkPro
Advanced Minecraft server benchmark plugin with Antutu-style scoring, CPU throttling test, and live ActionBar performance analysis.
RatsCurrencies
A Simple Custom Currency Plugin Which Adds A Shop And A Currency Distribution System For Your Server. This Also Helps To Save The Memory And CPU Usage Which Are Overused In Another Currency Plugin. This Has Very User Friendly Interface [1.18+]
Config Hub
USH-Universal Config Hub is a web dashboard for editing all Paper plugin configs. It validates changes, shows reload requirements (hot, plugin reload, or server restart), and safely migrates old versions with backups.
NextLib
Build Minecraft Plugins The Easy Way
Territory API
API for creating and managing in-world regions with efficient tracking, persistent storage, and simple enter/exit/tick events for gameplay mechanics like zones, arenas, and protected areas
MaxProtections
The best protection plugin with menu +
PerInfo
PerInfo is a robust utility plugin developed for Minecraft 1.21.1. It was designed to provide total transparency regarding commands and permissions, while transforming the chat experience through dynamic, real-time sharing of items and player status.
Kaze's Kit Setup
A datapack that adds the ability to create and load kits withoout using mods.
Voidcantation
This mod is made using fabric api and tested for minecraft version 1.21. It adds three unique items to the game, the void pocket, the phase dagger and the architects compass that adds some unique elements to the game.
KNLibs
KNLibs is a lightweight, high-performance core library required for all KN Projects plugins.
Datapacks Menu
Inspired by the ModMenu mod but for datapacks..
SyAPI
Provides some obscure APIs for the development of other plugins
GideonLobby
A modern and modular lobby framework built for Paper servers.
Modins
Modins is a mod for mod development; it copies mods currently loaded in Fabric memory. This helps identify which mod might be causing crashes, allowing you to fix the issue or submit a report to the mod creator.
PermsCraft
Minecraft Advanced Permission plugin
UltraTrackStats
UltraTrackStats is a Bukkit/Spigot plugin that provides a centralized player statistics tracking system (kills, blocks, and more) accessible by any plugin via a simple public API.
Safe Login
Simple, safe, and efficient login – that's the goal of this module.
CodeLib - Coder's Libraries
A Paper plugin that downloads and extracts essential Java libraries for Coder addons — including Gson, Rhino, LuaJ, Jython, HttpClient, VaultAPI, LuckPerms, ProtocolLib and more. Drop it in your server once and let CodeLib handle the rest.
MonolithAPI
A modern API for creating custom blocks on Paper servers